I want to clear my recorder of all loaded files. How do I format the recorder?

Question: I want to clear my recorder of all loaded files. How do I format the recorder?
The recorder and memory card should be formatted only by using the internal FORMAT function found in the recorder’s menu. Using a computer to format a card will render the card unusable in the DS-2200. The card will then have to be formatted in the recorder to restore functionality.
Verification Source: Olympus Website